761131247 has 2 divisors, whose sum is σ = 761131248. Its totient is φ = 761131246.

The previous prime is 761131223. The next prime is 761131291. The reversal of 761131247 is 742131167.

It is a weak prime.

It is an emirp because it is prime and its reverse (742131167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 761131247 - 2⁶ = 761131183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (761151247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380565623 + 380565624.

It is an arithmetic number, because the mean of its divisors is an integer number (380565624).

Almost surely, 2^761131247 is an apocalyptic number.

761131247 is a deficient number, since it is larger than the sum of its proper divisors (1).

761131247 is an equidigital number, since it uses as much as digits as its factorization.

761131247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 761131247 is about 27588.6071957248. The cubic root of 761131247 is about 913.0330894427.

The spelling of 761131247 in words is "seven hundred sixty-one million, one hundred thirty-one thousand, two hundred forty-seven".